<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>axios基本默认</title>
    <link crossorigin="anonymous" href="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
</head>
<body>
    <div class="container">
        <h2 class="page-header">基本使用</h2>
        <button class="btn btn-primary"> 发送GET请求 </button>
        <button class="btn btn-warning" > 发送POST请求 </button>
        <button class="btn btn-success"> 发送 PUT 请求 </button>
        <button class="btn btn-danger"> 发送 DELETE 请求 </button>
    </div>

    <script>
        let btns=document.querySelectorAll('.btn');

        //默认配置
        axios.defaults.method='get'; //设置默认的请求类型为 GET
        axios.defaults.baseURL="http://localhost:3000"; //设置基础url
        axios.defaults.params={id:2};  //url查询字符串,xxx?id=2
        axios.defaults.timeout=3000;

        btns[0].onclick=function(){
            axios({
                url:'/posts',
            }).then(response=>{
                console.log(response);
            });
        };
    </script>
</body>
</html>